Improvement in paper bags



J. S. OSTRAND-ERE PAPER-BAG.

N. PETERS, PHOTOLIITHOGRIPHER, WASHINGYON. D. C,

UNITED STATES PATENT OFFTGE JAMES S. OSTRANDER, OF DAYTON, OHIO,ASSIGNOR TO THOMAS NIXON, OF SAME PLACE.

IMPROVEMENT IN PAPER BAGS.

Specification forming part of Letters Patent N 0. 181,198, dated August15, 1876; application filed April 28, 1876.

.To all whom it may concern: 7

Be it known that I, JAMES S. OSTRANDER, of Dayton, Montgomery county,State of Ohio, have invented an Improvement in Paper Bags, of which thefollowing is a specification:

My invention consists of a paper bag which, in the process ofmanufacture in the machine which fabricates it, is made from a strip ofpaper fed from a paper-roll, and gradually folded and pasted into atube, the strip, be-. fore or in the act of folding into a tube, beingmade to receive a transverse line of paste, which, after folding, closesthe two sides at the bottom, and before or in the act of making the lapfor the bottom receives another transverse line of paste, which, whenthe bottom lap is completed, secures said lap firmly to the body of thebag, the object being to avoid the paper-wasting process of making thebag from short tubes cut anglewise at both ends from a tube when partlyopen, and to provide a bag having a bottom free from corner apertures,even when made with a very narrow bottom lap. v

Figure 1 is a perspective view of the strip of paper in the act ofreceiving the paste, and in the process of formation into a tube. Fig.

. 2 is a perspective view of the bag in the act of having its bottom lappasted against the body to complete the bag.

A is the strip of paper, which is fed in the direction of the arrow froma paper-roll, and by old and Well-known drawing-rolls and outside guidesdrawn along a table, and gradually folded into a flattened tube, one ofthe edges having been previously pasted before the edges are overlapped,and the tube passed through the drawing-rolls. The letters a a representthe lines at which the side folds are made. b represents the line atwhich the tube when folded and" pasted is cut off, which cuttingofilledo'when that part of the tube" has passed through thedrawing-rolls and the bag isin the act of receiving its bottom fold, thebags passing bottom foremost through the machine, and receiving thebottom lap in the way common in the making of bottom seams of otherforms of bags. The line c represents the line of the bottom seam. Brepresents a transverselineofpaste, extending, preferably,

to the full width of the space between the lines o. This line of pastemay be applied by a reciprocating blade, such as is shown at G, which ismade by any suitable attachment, to receive paste at the beginning ofthe stroke downward, termination of stroke upward, or otherwise. Thisline of paste may be applied either before the side folding hascommenced or during the process of side folding, and its presence orprovision is the distinguishing feature of this bag.

After the bag is drawn through the drawing-rolls its forward end isdoubled up by the usual bottoming pasting-blade, which applies thepaste-line and forces the bag for completion through the finishingpressing-rolls.

I claim- A paper bag cut from a tube, and having its bottom secured bytwo lines of paste, B D,

one of which cements the two sides of the bottom lap together, while theother cements this two-ply lap to one side of the body of the bag,substantially in the manner and for the purpose specified.

In testimony of which invention I hereunto set my hand.

JAMES S. OSTRANDER. Witnesses:

EDGAR J. Gaoss, JOHN E.-J ONES.

